parabellum
There is no requirement for us to carry our own personal set of Jeps.
It has been company policy to issue individual sets to each crew member.
It appears that this policy is about to change albeit somewhat late for some crew.
Wheeled bags are part of the solution but I would hazard a guess some of the posters above you have not been on a 737 let alone tried to wheel their Nav bag into position in the cockpit of a 737.
'Nemo Me Impune Lacessit' is rather appropriate in this situation!